package com.yh.patterns.bridge;

/**
 * @Auther:云尚学Java
 * 抽象的操作系统类（抽象化角色）
 */
public abstract class OperatingSystem {
    //声明videFile变量
    protected VideoFile videoFile;
    public OperatingSystem(VideoFile videoFile) {
        this.videoFile = videoFile;
    }
    public abstract void play(String fileName);
}
